Techniques Machine Learning
While much of the country is dealing with rain and snow, California is still dry. One hundred percent of the state is in some form of drought, and a new study just released by the Carnegie Institution for Science has now put a number on what the drought has done to California’s iconic forests. A high-tech flying laboratory has been soaring over California, measuring the impact of four years of drought.
“There’s a lot of red on this screen, which is a sign that we’re over an area that’s in trouble,” scientist Greg Asner told CBS News.
New maps reveal the extreme impact the years-long drought has had on California’s trees and offer a prognosis for future forest health.
Up to 58 million trees have been severely stressed by the drought and related factors, such as rising temperatures and a plague of bark beetle infestations. If the drought persists, hundreds of millions of trees throughout the state could die, according to a study published this week in Proceedings of the National Academy of Sciences.
The past four years of punishing drought have badly hurt California’s forests. Rain was scarce, the days were too hot, and this year’s wildfire season was the worst anyone has seen in years, burning up nearly 10 million acres across the West. For the first time, a team of researchers has measured the severity of the blow the drought dealt the trees, uncovering potential future destruction in the process. The resulting paper, published Monday in the Proceedings of the National Academy of Sciences, is a rich visual testament to just how much California needs its trees and how close the state is to losing 58 million of them.
Individual trees “carved out” of hyperspectral remote sensing images using advanced techniques